Wednesday, March 17, 2010

Risks and Possible Complications

Before the surgery, your surgeon should explain to you the risks and possible complications, and potential side effects, including the pros and cons of having one or both eyes done on the same day. This is the “informed consent” process.

Complications can include:
• over- or under-correction. These problems can often be improved with glasses, contact lenses and enhancements.
• corneal infection.
• a decrease in contrast sensitivity, “crispness,” or sharpness. That means that even though you may have 20/20 vision, objects may appear fuzzy or grayish. This is referred to as “Lasik 20/20 or 20/40.”
• flap problems, including: irregular or incomplete flaps, ingrowth of cells under the flap that may need to be surgically removed, and irregular healing that results in a distorted cornea, which can only be corrected with a corneal transplant.
• “loss of best corrected visual acuity”– that is, you would not be able to see as well after surgery, even with glasses or contacts, as you did with glasses or contacts before surgery.
The following side effects are possible, but usually disappear over time. In rare situations, they may be permanent.
• discomfort or pain
• hazy or blurry vision
• scratchiness
• dry eye
• glare
• haloes or starbursts around lights, and problems with night driving that may require glasses
• light sensitivity
• small pink or red patches on the white of the eye

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